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Is 21 a prim number

Updated: 10/17/2024

Wiki User

∙ 13y ago

Best Answer

No, it is composite. 21 is divisible by 1, 3, 7, and 21. =)

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∙ 13y ago

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Q: Is 21 a prim number

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Still have questions?

What is the Prim factorixation of 9 and 21?

They are: 3*3 = 9 and 3*7 = 21

Is 10 a prim number?

No.

What are prim and composite numbers?

a prim number is a number that only one and its self can go it to it ....... And a composite number is when other numbers can go in to it

Is 72 a prim number?

no it is not a prime number

Is 104 a prim number?

no. it is not a prime number

Is 70 a prim number?

No 70 is not a prime number.

Is 233 a prim number?

Yes.

What is the tenth prim number?

Is 51 a prim number?

No 17

What is the prim number after 50?

Is 417 a prim number or a composite nuMber?

No, it can be divided by 3

Is 453 a prim number?

yes, 453 is a prime number

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Is 21 a prim number?

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